all the THC is absorbed in 10 sec or less, exhaled smoke contains no thc.. so yes 'ghost' or shotgun, ot whatever ya wanna call it hits are pointless

holding it for longer doesnt do anything but give you a headrush from oxygen deprivation and perhaps a placebo effect
mightymarijuanabuds Reviewed by mightymarijuanabuds on . How long should you hold in the smoke? I've heard many things like all the THC is absorbed after 5 - 8 seconds. Personally I like to hold it in as long as I can but I find myself smoking alone alot more than I used to and I get mad as I watch my joint slowly burn away as I'm holding in. Rating: 5